Finding the Fourth Proportional to 115,375.99, 159,290.94 and 88,466.80
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Solution
The fourth proportional to 115,375.99, 159,290.94 and 88,466.80 is: 122,139.45
Step by Step Solution
- Step 1: Write the proportion equation
115,375.99 : 159,290.94 = 88,466.80 : x - Step 2: Convert to fraction form
115,375.99/159,290.94 = 88,466.80/x - Step 3: Cross multiply
115,375.99x = 159,290.94 × 88,466.80 - Step 4: Simplify right side
115,375.99x = 14,091,959,730.79 - Step 5: Solve for x
x = 14,091,959,730.79/115,375.99 - Step 6: Final answer
x = 122,139.45
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.